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Kaoru Nagao

Kaoru Nagao

JPNJPNWomen
Birth dateSep 26, 1989
Height-
Weight-

Kaoru Nagao is a Japan middle-distance runner, born on September 26, 1989. She competes primarily in the 1500m, 3000m and 5000m.

Her personal bests include 4:28.06 in the 1500m, 9:22.41 in the 3000m, 15:35.74 in the 5000m, 32:10.46 in the 10000m and 1:10:32 in the Semi. She is currently active on the international athletics circuit, representing Japan.

Key facts
Marathon
2:26:58
#821 all-time
10 000 m
32:10.46
#859 all-time
2025 season best
2:55:52
Mar 2, 2025 · Tokyo (JPN)
2025 season best
Last competition
Tokyo Marathon
Mar 2, 2025 · 2:55:52
Tokyo Marathon
Age
36 years old

As of Sep 18, 2026: Marathon 2:26:58 (#821 all-time), 10 000 m 32:10.46 (#859 all-time), 2025 season best 2:55:52 (Mar 2, 2025, Tokyo (JPN)) · Last competition: Tokyo Marathon, Mar 2, 2025, 2:55:52 · 36 years old

Performance Charts

Season bests

SeasonDisciplineResultWindDateTrendCompetitions
2025
Marathon
2:55:52-Mar 2, 2025
↓
Tokyo Marathon
2021
Marathon
2:38:37-Jan 31, 2021
↓
Osaka Women's Marathon
2020
Semi
1:17:22-Feb 2, 2020
↓
Kagawa Marugame International Half Marathon
2020
30Kilometr
1:50:37-Feb 16, 2020
↓
Ohme-Hochi Road Race
2019
Semi
1:15:06-Feb 3, 2019
↓
Kagawa Marugame International Half Marathon
2019
30Kilometr
1:47:49-Feb 17, 2019
↓
Ohme-Hochi 30km Road Race
2019
Marathon
2:42:07-Apr 15, 2019
↓
B.A.A. Boston Marathon, Boston, MA
2018
3000m
9:36.25-Jul 4, 2018
↓
Abashiri (JPN)
2018
5000m
16:16.66-Jul 11, 2018
↓
Fukagawa (JPN)
2018
Semi
1:15:50-Nov 18, 2018
↓
-
2018
Marathon
2:54:01-Feb 25, 2018
↓
Tokyo Marathon
2017
10MilesRoa
58:21-Sep 24, 2017-Bronx, NY (USA)
2017
Semi
1:16:09-Feb 5, 2017
↓
Marugame (JPN)
2017
Marathon
2:44:26-Nov 5, 2017
↓
New York Marathon
2016
30Kilometr
1:49:37-Feb 21, 2016
↓
Tokyo (JPN)
2016
Marathon
2:30:54-Mar 13, 2016
↓
Nagoya (JPN)
2015
5000m
16:34.77-May 24, 2015
↓
Yokohama (JPN)
2015
Marathon
2:51:11-Jan 25, 2015
↓
Osaka (JPN)
2014
5000m
15:56.40-May 18, 2014
↓
Fukushima (JPN)
2014
10000m
32:22.06-Apr 20, 2014
↓
Kobe (JPN)
2013
5000m
15:35.74-Dec 21, 2013
↓
Yokohama (JPN)
2012
5000m
15:59.28-May 20, 2012
↓
Saitama (JPN)
2012
10000m
33:11.14-Apr 22, 2012
↓
Kobe (JPN)
2012
Semi
1:10:32-Feb 5, 2012
↓
Marugame (JPN)
2012
Marathon
2:38:02-Mar 11, 2012
↓
Nagoya (JPN)
2011
10000m
32:10.46-Apr 24, 2011
↓
Kobe (JPN)
2011
Marathon
2:26:58-Feb 20, 2011
↓
Yokohama (JPN)
2010
5000m
15:56.47-Dec 25, 2010
↓
Yokohama (JPN)
2010
Semi
1:10:45-Mar 21, 2010
↓
Yamaguchi (JPN)
2009
3000m
9:24.33-May 17, 2009
↓
Tendo (JPN)
2009
5000m
15:54.66-Jul 15, 2009
↓
Kitami (JPN)
2008
3000m
9:22.41-Apr 29, 2008
↓
Kumagaya (JPN)
2007
1500m
4:28.06-May 26, 2007
↑
Yokohama (JPN)
2006
1500m
4:28.61-May 28, 2006
↑
Yokohama (JPN)
2006
3000m
9:29.98-May 21, 2006
↓
Chiba (JPN)
2005
3000m
9:32.84-Oct 23, 2005
↓
Yokohama (JPN)

2025

1 performance
DisciplineResultWindDateCompetitions
Marathon
2:55:52-Mar 2Tokyo Marathon

2021

2 performances
DisciplineResultWindDateCompetitions
Marathon
2:41:03-Mar 14Nagoya Women's Marathon
Marathon
2:38:37-Jan 31Osaka Women's Marathon

2020

2 performances
DisciplineResultWindDateCompetitions
30Kilometr
1:50:37-Feb 16Ohme-Hochi Road Race
Semi
1:17:22-Feb 2Kagawa Marugame International Half Marathon

2019

7 performances
DisciplineResultWindDateCompetitions
Marathon
2:52:56-Dec 8Honolulu Marathon
Marathon
2:39:58-Nov 23Otawara Marathon, Otawara
Semi
1:18:26-May 18Half Marathon, Brooklyn, NY
Marathon
2:42:07-Apr 15B.A.A. Boston Marathon, Boston, MA
Marathon
2:36:09-Mar 10Nagoya Women's Marathon
30Kilometr
1:47:49-Feb 17Ohme-Hochi 30km Road Race
Semi
1:15:06-Feb 3Kagawa Marugame International Half Marathon

2018

7 performances
DisciplineResultWindDateCompetitions
Semi
1:15:50-Nov 18Ageo City Half Marathon, Ageo
5000m
16:27.49-Nov 10Yokohama 267th Nittai University Time Trials, Yokohama
5000m
16:31.94-Jul 14Shibetsu Hokuren Distance Challenge, Shibetsu
5000m
16:16.66-Jul 11Fukagawa Hokuren Distance Challenge, Fukagawa
5000m
16:22.11-Jul 7Kitami Hokuren Distance Challenge, Kitami
3000m
9:36.25-Jul 4Abashiri Hokuren Distance Challenge, Abashiri
Marathon
2:54:01-Feb 25Tokyo Marathon

2017

6 performances
DisciplineResultWindDateCompetitions
Marathon
2:49:24-Dec 10Honolulu Marathon, Honolulu, HI
Marathon
2:44:26-Nov 5New York Marathon
10MilesRoa
58:21-Sep 24Bronx 10M, Bronx, NY
Semi
1:17:58-Sep 17Ichinoseki Half Marathon, Ichinoseki
Semi
1:16:28-May 21Seoul Nike Women's Half Marathon, Seoul
Semi
1:16:09-Feb 5Marugame Half Marathon, Marugame

2016

2 performances
DisciplineResultWindDateCompetitions
Marathon
2:30:54-Mar 13Nagoya Women's Marathon, Nagoya
30Kilometr
1:49:37-Feb 21Tokyo Ohme-Hochi Road Race, Tokyo

2015

2 performances
DisciplineResultWindDateCompetitions
5000m
16:34.77-May 24Yokohama Nittai University Time Trials, Yokohama
Marathon
2:51:11-Jan 25Osaka International Ladies Marathon, Osaka

2014

5 performances
DisciplineResultWindDateCompetitions
5000m
16:03.38-Jun 8Fukushima Japanese Championships, Fukushima
10000m
32:58.38-Jun 6Fukushima Japanese Championships, Fukushima
5000m
15:56.40-May 18Fukushima East Japan Corporate Ch., Fukushima
10000m
32:49.60-May 17Fukushima East Japan Corporate Ch., Fukushima
10000m
32:22.06-Apr 20Kobe Hyogo Relays, Kobe

2013

1 performance
DisciplineResultWindDateCompetitions
5000m
15:35.74-Dec 21Yokohama Nittai University Distance Meet, Yokohama

2012

5 performances
DisciplineResultWindDateCompetitions
10000m
33:33.83-Jun 8Japanese Championships, Osaka
5000m
15:59.28-May 20Saitama East Japan Corporate Ch., Saitama
10000m
33:11.14-Apr 22Kobe Hyogo Relays, Kobe
Marathon
2:38:02-Mar 11Nagoya International Women's Marathon, Nagoya
Semi
1:10:32-Feb 5Marugame Half Marathon, Marugame

2011

5 performances
DisciplineResultWindDateCompetitions
Marathon
2:29:43-Nov 20Yokohama Women's Marathon, Yokohama
10000m
33:19.14-Jul 7Kobe Asian Championships, Kobe
10000m
32:33.18-Jun 10Japanese Championships, Kumagaya
10000m
32:10.46-Apr 24Kobe Hyogo Relays, Kobe
Marathon
2:26:58-Feb 20Yokohama Women's Marathon, Yokohama

2010

2 performances
DisciplineResultWindDateCompetitions
5000m
15:56.47-Dec 25Yokohama Nittai University Distance Meet, Yokohama
Semi
1:10:45-Mar 21Yamaguchi All-Corporate Half Marathon Championships, Yamaguchi

2009

3 performances
DisciplineResultWindDateCompetitions
5000m
15:54.66-Jul 15Kitami Hokuren Distance Challenge, Kitami
3000m
9:24.33-May 17Tendo
5000m
16:27.42-Apr 4Kumamoto Kanaguri Memorial, Kumamoto
Showing 1 - 50 of 57

Honours

5

Kobe Asian Championships

10,000 Metres

2011
5

Kobe Asian Championships

10,000 Metres

2011
FAQ

Frequently asked questions

What is Kaoru Nagao's Marathon personal best?

Kaoru Nagao's Marathon personal best is 2:26:58, set on Feb 20, 2011 in Yokohama (JPN), #821 on the all-time list.

Which events does Kaoru Nagao compete in?

Kaoru Nagao competes in the Marathon and 10 000 m.

How did Kaoru Nagao perform in 2025?

2025 season best: 2:55:52, set on Mar 2, 2025 in Tokyo (JPN). Last competition: Tokyo Marathon on Mar 2, 2025, 2:55:52.